Look
here to see a video of a pod of orcas off the coast of Texas. It's very rare for them to venture into the Gulf. Although I love the part where the one guy says something about how 'they're not orcas, they're killer whales'. Duh.
EDIT: So as those who are better at deciphering distorted video tell me, what he actually said is 'these aren't porpoise. They're killer whales.' Which is correct. Ah well.